US1225988A - Photographic-film cartridge. - Google Patents

Description

B. H. MEYERING.

PHOTOGRAPHIC FILM CARTRIDGE.

APPLICATION FILED JULY 3!, 1914.

225,988. Patented May15,1917.

UNITED STATES PATENT OFFICE.

Big-ultimo H. MEYERING, or ROCHESTER, NEW YORK, AssIsNoR TO EASTMAN KODAK .e'eiu'nmr or ROCHESTER, YORK, A CORPORATION OF NEW YORK.

.lI-IOL'OGRAPHIOFILM CARTRIDGE.

To all whom. it nay concern.

Be it known that I. lhcuxxuu H. MEYnie 1x0. of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Photograph'ie-Film (,artridges; and Ido hereby declare. the following to be a full, clear, and exact description of the same, reference being had to the accon'lpanying drawings,

forming-a part of this specification, and to the reference-numerals marked thereon.

My ptesentg invention relates to film cartridges embodying sensitized photographic him and a covering strip and has for its object to provide means for light printing upon the film, designations indicating the separate exposures made in the camera so that the negatives 'may be distinguished preferably by the same or similar designations as those which appearon the flexible cover when the exposuresare made.

-In the drawings:

Figurell is a perspective view of a film cartridge embodying my invention;

Fig. 2 is a sectional view of the film and covering strip;

Fig. 3 is a view of a nualification; and

Fig. r-is a view of a portion of the rear wall of a roll holder or camera showing the exposure designation at the edge.

Similar reference numerals throughout the several figures indicate similar parts.

A indicates the usual fl .xible strip of black paper or similar opaque ')rotecting material on the back of which are placed the usual or any suitable marks or designations finished negative.

a and 7), usually placed near the margin, for

indicating the separate exposures and B the flexible sensitized film which is wound with the paper upon spool C.

In order to cause the numerals or other characters designating the separate exposures toappear on the. negatives, I provide theopaque. strip A with perforations c in the outline of the numeral or character cor responding to the one that is visible through theopening or window in the back ot' the camera or roll holder, so that when such perto 'atcd portion exposed to light suiticient actiuic light may pass through the per-v forations and fog the film in the outline thereof and will therefore appear in the It is desirable, of course, that these desig- Specification of Letters Patent.

Application filed July 31, 1914. Serial No. 854,218.

nations appear at one side of tb megative or between the negatives and therefore in Fig. 1, I have shown the designating apertures 0 near the points of severance of the film and between the sides, in this instance the light printing is to be accomplished through an aperture formed in the back of the camera or roll holder. It will be understood, however. thatsuch pert'orated portions could be arranged at or near the margin of the film strip and at one end of the exposure and themselves form the indications visible. through a rear aperture'in the camera or holder to determine when a new exposure of film is wound into place. This arrangement is shown in Fig. t of the drawing in which E represents the rear of the camera or holder and l) the aperture therein, the outline of the exposure opening for the picture being indicated by the dotted lines.

In order to prevent the light passing through the perforations in the opaque covoring from fogging the film unduly and rendering the designations indistinct or to re-. duce its intensity, I provide preferably beneath the perforations a translucid. covering preferably such as paper which will permit the passage of sutlicient actiuic light to print the designations on the film while preventing halation. 'lhis covering material may be in the form of a strip of red translucent paper I wound with. the covering strip A and the film B, as shown in Fig. 2, and substantially of the same length as either or both of them or I may employ separate waters or strips of such paper beneath. the perforated portion, as shown in Fig. 3, G indicating silL'h protecting strip, a trifie larger than the extent of the perforation. Iustead of locating this light tempering cover on the cartridge it might be formed by the red celluloid covered window or aperture usually employed on the camera back t'or detern'iimng thc winding of the film and covering, although in this instance said window would have to be located near exposure, as indicated in Fig. mterterence with the picture but by employing small perforations said. strip is not unduly weakened and the 1ia-.

bility of tearing is reduced, 1 claim as my invention:

1. A photographic film cartridge embodyfilmare unrolled, to transmit light to a restricted area of the film in the form of a designating character to be light printed thereon.

2. A film cartridge embodying a flexible strip of sensitized film, an opaque flexible covering strip wound with it into a roll, said covering strip. having perforations therein forming designating characters andpermitting the passage of light to the film when the strip is exposed to light and a translucent covering for reducing the intensity of the light passing to the film through said perforations i I BERNARD H. MEYERING. Witnesses 'JOHN E. SHEARER,

C. E. MAn'rrN.

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